You think you got a gotcha there, don't you? No need to discuss it in a measured way if you can take a single debatable point and cling to it like your life depend on it.
By definition I can't know if one artist truly quit or not or why if they aren't posting anymore. They might simply disappear. Also, commercial use of AI is just starting to ramp up so expecting the impacts to be immediately observable else it isn't happening, is just not a reasonable way to evaluate the situation.
The point of AI is to make creation of text, images and audio faster and easier without any human effort. It's only logical to expect it to substitute people's work.
I have heard people saying things about how AI is already being used for roles that would employ people. If you want names and proof of full bankruptcy you can go look into it yourself. But I'm not going to make a full investigative essay for someone who's making bad faith single sentence responses.
Though thinking of it, wasn't this news article posted in this very community? Duolingo lays off staff as language learning app shifts toward AI Well, the way you are acting you might just say "oh but that's not an artist", to try to 'win' the argument on a technicality, despite proof of AI usage leading to job losses.